1940115888 has 240 divisors, whose sum is σ = 6032426400. Its totient is φ = 601509888.

The previous prime is 1940115883. The next prime is 1940115889. The reversal of 1940115888 is 8885110491.

1940115888 is a `hidden beast` number, since 19 + 40 + 11 + 588 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940115883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9848206 + ... + 9848402.

It is an arithmetic number, because the mean of its divisors is an integer number (25135110).

Almost surely, 2^1940115888 is an apocalyptic number.

1940115888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1940115888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3016213200).

1940115888 is an abundant number, since it is smaller than the sum of its proper divisors (4092310512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1940115888 is a wasteful number, since it uses less digits than its factorization.

1940115888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 45.

The square root of 1940115888 is about 44046.7466221967. The cubic root of 1940115888 is about 1247.2185381400.

The spelling of 1940115888 in words is "one billion, nine hundred forty million, one hundred fifteen thousand, eight hundred eighty-eight".